Home / 33,428.70-46,131.32-18,321.05

Finding the Fourth Proportional to 33,428.70, 46,131.32 and 18,321.05

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Solution

The fourth proportional to 33,428.70, 46,131.32 and 18,321.05 is: 25,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,428.70 : 46,131.32 = 18,321.05 : x
  2. Step 2: Convert to fraction form
    33,428.70/46,131.32 = 18,321.05/x
  3. Step 3: Cross multiply
    33,428.70x = 46,131.32 × 18,321.05
  4. Step 4: Simplify right side
    33,428.70x = 845,174,381.42
  5. Step 5: Solve for x
    x = 845,174,381.42/33,428.70
  6. Step 6: Final answer
    x = 25,282.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.